Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"Sediment toxicity tests"”.
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Comparative Toxicity of Eight Model Substances to the Sediment Dwelling Invertebrates Lumbriculus variegatus and Chironomus riparius
Existing ecotoxicity data for chemicals vary to a high extent between the environmental compartments water and sediment, since the evaluation of contaminants has historically focused on water exposition. Many anthropogenic chemicals and waste materials, including toxic organic and inorganic …
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Quantifying the presence of current-use insecticides and toxicity of sediments in urban residential watersheds in central Texas.
… concentration of current-use pesticides in the sediments of residential streams in central Texas. Additionally, the toxicity of these sediments to Hyalella azteca was evaluated. Sediment samples were collected from several sites in urban streams over the course of a pesticide application season. …
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Sediment toxicity and bioaccumulation of toxicants in the zebra mussel, Dreissena polymorpha, at Times Beach, Buffalo, New York
… detection limits in the water column. In the sediment toxicant concentrations were as high as 549 mg/kg for total PAHs, 9 mg/kg for PCB Aroclor 1248, and 54, 99, 6, 355, 637, and 16 mg/kg for the metals: As, Ba, Cd, Cr, Pb, and Hg respectively. To predict contaminant bioavailability, elutriate …
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Macrobenthic community and ecotoxicological status of the Nhlabane Estuary
… trace metal contamination of the estuary water, sediment and biota due to mining activities. The study aimed to describe the macrobenthic community of the Nhlabane Estuary during the post-drought period 1996-1999, to assess the ecotoxicological status of the Nhlabane Estuary in relation to dune …
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Análisis Ecotoxicológico Integrado de la Contaminación Marina en los Sedimentos de la Costa De Murcia: El Caso de Portmán, Sudeste - España
… the most seriously heavy metal contaminated sediments of the Mediterranean Sea. From 1958 to 1991, approximately 50 million tons of mine tailings were dumped into the bay, completely filling up the bay and dispersing over an extensive area of the continental platform and continental slope. …